Minnesota Boiler License Practice Exam

The safety relief valve on a hot water boiler serves a crucial role in maintaining safe operating conditions. If this valve does not function properly, it can result in dangerous situations. Specifically, the primary purpose of the safety relief valve is to release excess pressure within the boiler system. If the valve fails to open when needed, pressure will continue to build up.

When pressure exceeds the safe threshold, it can lead to overheating, as the water inside the boiler is heated beyond its intended limits. This overheating can cause severe damage to the boiler and, in extreme cases, may lead to an explosion. Therefore, the failure of the safety relief valve poses a significant risk, making it essential for such safety devices to operate effectively to prevent potential catastrophic failures.